Shakespear de Bignon, R. (1978). English Lessons: Book I (12th.ed.). Editorial "Stella".
Chicago-čujuhus (17. p.)Shakespear de Bignon, Renée. English Lessons: Book I. 12th.ed. Buenos Aires: Editorial "Stella", 1978.
MLA-čujuhus (9. p.)Shakespear de Bignon, Renée. English Lessons: Book I. 12th.ed. Editorial "Stella", 1978.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.